Split electromagnetic flowmeter is an instrument that is widely used in the field of industrial flow measurement and has special advantages. It is mainly composed of two parts: sensor and converter. This split design brings many conveniences and features.
From a structural point of view, its sensor part includes key components such as measuring tube, electrode, excitation coil, iron core and yoke shell. As a channel for fluid to pass through, the material of the measuring tube is usually selected according to the characteristics of the measured medium to ensure corrosion resistance and good conductivity, thereby providing a basis for accurate measurement. The electrode is responsible for sensing the induced electromotive force generated during the flow of the fluid. Its material and installation position are crucial for accurate signal acquisition. The excitation coil generates a stable magnetic field, so that the conductive liquid in the measuring tube can cut the magnetic lines of force when flowing, thereby generating an induced potential proportional to the flow rate. The iron core and the yoke shell play the role of enhancing the magnetic field, improving the measurement sensitivity and protecting the excitation coil
The working principle of the split electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. When the conductive liquid flows in the measuring tube, it cuts the magnetic lines of force, thereby generating an induced electromotive force in a direction perpendicular to the pipeline. The magnitude of this induced electromotive force is proportional to the flow rate of the liquid. The induced electromotive force signal is led out through the electrode, and after a series of processing and conversion by the converter, an electrical signal related to the flow rate is obtained, thereby achieving accurate measurement of the fluid flow rate.
In practical applications, the advantages of split electromagnetic flowmeters are obvious. It has high measurement accuracy and can accurately measure the flow of various conductive liquids, whether it is water, sewage, mud or other conductive liquids, which can meet the requirements of industrial production and process control for flow measurement accuracy. Secondly, because its sensor and converter can be installed separately, it is more flexible and convenient to use in some special environments. For example, in high temperature, high pressure, humid or highly corrosive environments, the converter can be installed in a safe position away from the sensor to avoid being affected by the harsh environment, and it is also convenient for operators to monitor and maintain the converter.
In addition, the split electromagnetic flowmeter also has good adaptability and stability. It can adapt to the installation requirements of pipelines with different diameters, and has strong adaptability to changes in fluid parameters such as pressure, temperature, and viscosity. In the long-term operation process, as long as proper maintenance and calibration are carried out regularly, stable and reliable measurement performance can be maintained, providing strong guarantee for the continuous and stable operation of industrial production. At the same time, it can also realize the measurement of forward and reverse flow, and can display multiple parameters such as instantaneous flow, cumulative flow, flow rate and flow percentage, meeting the diverse needs of different users for flow information.